EP1177017B1 - Kopfschutzgerät zum schnellen anziehen - Google Patents

Kopfschutzgerät zum schnellen anziehen Download PDF

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Publication number
EP1177017B1
EP1177017B1 EP01915448A EP01915448A EP1177017B1 EP 1177017 B1 EP1177017 B1 EP 1177017B1 EP 01915448 A EP01915448 A EP 01915448A EP 01915448 A EP01915448 A EP 01915448A EP 1177017 B1 EP1177017 B1 EP 1177017B1
Authority
EP
European Patent Office
Prior art keywords
strap
cover
mask
fixed
equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP01915448A
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English (en)
French (fr)
Other versions
EP1177017A1 (de
Inventor
Michel Bardel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aerosystems SAS
Original Assignee
Intertechnique SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Intertechnique SA filed Critical Intertechnique SA
Publication of EP1177017A1 publication Critical patent/EP1177017A1/de
Application granted granted Critical
Publication of EP1177017B1 publication Critical patent/EP1177017B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/084—Means for fastening gas-masks to heads or helmets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
    • A62B17/04—Hoods

Definitions

  • the invention relates to head protection equipment comprising a breathing mask, a harness allowing rapid placement on the face and means for protecting the eyes against fumes.
  • the equipment described as an example in the document EP-A-0288391 allows the pressure in the inflatable element to be set so as to give it an intermediate value between the complete emptying pressure and the complete inflation pressure and to reduce the discomfort created by the permanent wearing of the mask under the flight conditions where this port is required.
  • the document FR-A-2,778,575 substitutes a mechanical adjustment to the setting of the pressure.
  • the documents EP-A-0 628 325 and US-A-5,623,923 provide automatic adjustment.
  • a transparent visor internally ventilated from a respiratory regulator.
  • This visor can be fixed permanently to the mask, as in the equipment marketed under the mark "MAGIC" by the applicant (US Des. 304 384) or detachable for easy storage ( US-A-5,630,412 ). In both cases, pressurized breathing gas supply ports from the regulator to the visor are provided to sweep the visor and prevent fogging.
  • Visor-type equipment of this kind intended for the US Air Force, has been marketed from 1976 by the company Scott Aviation, under the reference MBU-2 / P. They include an oro-nasal mask welded to a flexible visor made of transparent polyurethane, equipped with a waterproof seal on the face. Due to the presence of a face seal, folding the equipment to store in a box is delicate and inconvenient; long-term storage can damage the seal.
  • the present invention aims in particular to provide head protection equipment, enveloping the mouth of the respiratory tract and eyes, providing comfort equivalent to that of existing equipment, easily stored and providing adequate protection against smoke and gas irritating the eyes .
  • head protection equipment enveloping the mouth of the respiratory tract and eyes
  • the present invention uses the fact that a perfect seal is not necessary, because the ventilation due to the overpressure of the respiratory gas is sufficient to chase smoke and irritating gases.
  • the invention therefore proposes equipment of the kind defined above, characterized by a flexible envelope intended to cover the head, sealingly attached to a sheath limiting the elongation of the single strap or the upper strap of the harness. and attached to the mask, said envelope being transparent at least in a portion which is in front of the eyes when the equipment is in place on the head.
  • Such a constitution makes it possible not to equip the envelope of the visor face seal which is essential in prior equipment, seal whose flexibility is insufficient to allow a convenient folding convenient equipment for storage.
  • the tightness of the connection between the envelope on the one hand, the mask and the strap on the other hand, can be made complete; there is usually a gap between the face and the envelope in a border area, at the rear of the seal of the mask. But this gap can be made very small by an appropriate arrangement of the straps, as will be seen later. In this case, the leakage to the environment of pressurized respiratory gas from the regulator through the mask is sufficient to drive out the fumes or irritating gases that would tend to penetrate to the eyes.
  • the waterproof connection or substantially sealed between the envelope and the extensible strap can be achieved by winding the edge of the envelope on the outer sheath inextensible commonly provided to limit the elongation of the strap.
  • the connection between the envelope and the inextensible sheath of the strap can in particular be made by sewing or gluing.
  • the edge of the envelope will be of sufficient length not to hinder the elongation of the strap for the establishment of the equipment. This edge will crease when deflating the strap.
  • the contraction of the strap during deflation occurs mainly in the rear part, so without causing any risk of bending affecting the visor. It will often be advantageous to give the portion of the envelope close to the mask increased stiffness relative to the rear part of the envelope to prevent the formation of folds in the front part.
  • the envelope is not limited to a simple cap. It extends downward from the single strap or upper strap to provide additional protection.
  • the tubular part of the envelope below the upper strap can be free relative to the lower strap or attached to its sheath. In the first case it is sufficient that the envelope passes outside the lower strap so that it, when inflated, deploys the lower part and facilitates the installation of the equipment on the head.
  • protection is sought as complete as possible, it is advantageous to place the lower part of the envelope inside the lower strap.
  • the envelope may have various constitutions, depending in particular on the user for whom the equipment is intended and the optical qualities required for the transparent part.
  • the envelope is in one piece made of a transparent material, such as polyurethane; a portion of which constitutes a visor. To avoid wrinkling in the visor area, this area may be thickened to be less flexible than the rest.
  • a transparent material such as polyurethane
  • the visor can be of one piece or made up of portholes separated by a thinner part facilitating the folding for storage.
  • Such a constitution of the envelope, which forms a cap covering the head has the advantage of being particularly simple and provide a very wide field of view.
  • the optical qualities that can be obtained are generally insufficient for a pilot.
  • this solution can be adopted for civil or military aircraft crew members, for whom a slight reduction in the accuracy of vision is tolerable, as well as for ground uses.
  • the envelope has a composite structure.
  • the non-transparent portion is a flexible, impermeable or very low permeable fabric, preferably non-flammable and resistant to high temperatures.
  • the transparent part is constituted by a flexible visor in one piece or in two portholes, in polyurethane or in another material which can be either rigid when a high optical quality is necessary, or slightly flexible, fixed in both cases so waterproof to the fabric.
  • This embodiment has the additional interest that the envelope is a cap protecting the scalp against thermal effects and possibly also protecting the neck and shoulders when the envelope has a lower portion extending below the upper strap .
  • the usual box for storing the head equipment is replaced by a flexible bag which can be provided to receive both a pneumatic harness mask quick set up a mask comprising a smoke protection envelope.
  • the emergency breathing equipment shown in Figure 1 in the state where it is when the harness is placed on the head can be regarded as having a mask 10 and a harness 11.
  • the mask shown has a face-cover oro -Nasal provided at the back with a seal with the face, which can be constituted by a thin internal fold.
  • the face cover is attached to a demand regulator 13 and to a rigid connection block 12.
  • the connection block is provided with a connection connection with a flexible conduit 17 intended to be connected to a source of respiratory gas under pressure (oxygen in general).
  • the harness shown has two straps 16a and 16b each consisting of an inner tube of a material allowing the tube to elongate, contained in a substantially inextensible sheath limiting the elongation of the tube.
  • the regulator 13 will be with or without dilution by air sucked into the cabin, with possibility of overpressure and undiluted respiratory gas supply in case of decompression at high altitude and / or presence of smoke .
  • the regulator is connected to the supply line 17 via the connection block 12.
  • the block carries manually inflated means for inflating the straps 16, consisting, for example, of a tap designed to be actuated by manual pinching of two ears. 18 carried by the connection block 12 and one of which is tilting.
  • the faucet is constituted so as to place an internal volume of the connection block 12 and the straps 16 in communication with the atmosphere when it is free, which then allows the straps to retract and to apply the mask against the face .
  • the valve When the valve is actuated, it admits on the contrary pressurized gas from the supply line 17 in the interior volume, which causes an elongation straps sufficient to allow rapid implementation.
  • the regulator can carry an aneroid capsule constituting an altimetry detector and automatically putting the straps in conjunction with the environment to cause maximum tightening in case of ambient depressurization.
  • the equipment also comprises a jacket 30 constituting a cup, made of transparent and flexible material, such as polyurethane, polyethylene or KAPTON, whose edge passes below the upper strap 16a is folded around it and is sealingly connected to the sheath limiting the extension of the strap. Notches in the edge deliver passage to the flexible bands 32 connecting from place to place the two straps.
  • the tightness of the connection with the mask can be ensured by simply gluing a folded side strip 38 of the envelope, which tends to retain the portion of the cap which constitutes a visor in a position sufficiently spaced from the face.
  • connection area with the glued strip can be preformed and have a thickness greater than that of the rest of the envelope so that the visor takes a specific shape when the equipment is in place on the head.
  • the inside of the visor is ventilated by adding air from the regulator through not shown passages, which can be similar to those of the MAGIC mask described in US Pat. 304,384 or the patent US 5,630,412 .
  • this gap can be of very small cross section if the straps are connected to the mask at the front of it, as shown in Figure 1. It can be closed by a flexible tongue attached to the mask or a flap. The pressurized breathing gas from inside the casing and escaping to the outside avoids the entry of polluting gas from the environment.
  • the envelope 30 extends down beyond the straps. It passes under the two straps and is glued at least to the upper strap. By also sticking to the lower strap, the latter forces the lower part to bloom when it inflates, which facilitates the establishment on the head.
  • the equipment according to the embodiment shown in FIG. 5 differs from that of FIG. 1 in that the envelope has a composite structure.
  • the majority of the envelope 30 and in particular that which is attached to the sheath of the upper strap 16a is made of a fabric or film of a material that can be opaque, flexible, sealingly connectable to the sheath of the strap and advantageously having a high heat resistance.
  • fabrics having an elasticity and / or flexibility facilitating the deformation required by the connection to a sheath that changes from a pleated state to a stretched state during use It is also possible to use the NOMEX, which is often made of the sheaths of the straps.
  • the envelope In front of the eyes the envelope has a transparent portion 41 constituting a window in one or two parts flexible enough to allow storage in a classic transport aircraft box, but able to take a definite form when it is no longer constrained, in order to have good optical qualities.
  • the envelope has a shape such that the window is in the immediate vicinity of the eyes when the strap is retracted, so as not to excessively reduce the peripheral vision.
  • the embodiment shown in Figure 6 differs from the previous in that the envelope extends below the upper strap 16a and passes around the lower strap to which it can be or not fixed.
  • the elongation of the lower strap for the implementation of the head equipment causes a development of the lower part of the envelope, facilitating the establishment on the head.
  • the mask is stored, folded in a storage box, for example of the type described in the document US - A - 5,913,307 from where the connection block overflows.
  • a storage box for example of the type described in the document US - A - 5,913,307 from where the connection block overflows.
  • the mask 10 is applied to the face with maximum force.
  • the edge of the envelope or an intermediate portion contracts at the same time as the strap 16a.
  • the folds of the envelope appear mainly in the rear zone of the strap and are plated on the head by tightening the strap without appreciable adverse effect on the seal.
  • the seal is further improved when the envelope extends below the upper strap or, better still, the two straps.
  • the user When the user wants to put the equipment back into its box, it fully inflates the harness by action on the ear 18. It can then remove all equipment. Once the mask is removed, the user releases the ear 18 so that the harness and the envelope become flexible and allow the manual folding, then the storage of the equipment in his box.
  • the storage device is a flexible wall bag 50 whose edge defines a mask passage opening and is provided with an expandable annular member 42 whose elasticity tends to tighten. Means for admitting into the element of the compressed gas to lengthen it.
  • the annular element 42 may have a constitution similar to that of an inflatable harness strap, such as one described in the documents already mentioned.
  • the annular element then generally comprises a tube made of an elastic material which is as tight as possible on which or in which is placed a flexible but substantially inextensible sheath whose length in the unfolded state defines the largest possible section of the opening .
  • the elasticity of the annular element 42 of such a device will advantageously be such that this element, when deflated, is applied against the nose of the mask 10 leaving only much smaller gaps than the flaps of a box.
  • the supply means of the annular element 42 may be combined with those which supply the harness.
  • These supply means may for example comprise a three-way valve 44 which, at rest, connects the element to the atmosphere and which, when pulled on the mask to remove it from the bag, comes into a position where it feeds the annular element with compressed gas.
  • the valve can be controlled by a pallet 46 placed against the rigid bottom of the bag 50 and causing the arrival of the valve in the empty position when it is pushed by the mask or, conversely, provided to have two locking positions elastic and be pulled by the mask when it is removed from the bag.
  • the supply means may also comprise a valve which is brought into the supply position in response to a manual action on a button and returns to the emptying position to the atmosphere after a determined period.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Toxicology (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Earth Drilling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Paper (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (11)

  1. Atemschutzauarüstung, die schnell auf dem Kopf eines Benutzers angelegt werden kann, umfassend:
    - eine Atemmaske (10), die mit einem Regulator (13) zur Verbindung (17) mit einer Quelle von unter Druck stehendem Atmungsgas ausgerüstet ist,
    - ein Gurtzeug (11), das zumindest einen dehnbaren Riemen (16a, 16b) aufweist, dessen Enden mit der Maske (10) verbunden sind, und das beinhaltet:
    - ein Element, das durch Zufluss des unter Druck stehenden Gases zeitweise aufgeblasen werden kann, um den Riemen (16a, 16b) auf ein Ausmaß auszudehnen, das groß genug ist, es dem Benutzer zu ermöglichen, das Gurtzeug (1,1) über seinen Kopf zu ziehen, und das dann entleert werden kann, so dass es dem Riemen (16a, 16b) ermöglicht wird, sich zusammenzuziehen, um die Maske (10) gegen das Gesicht des Benutzers zu drücken und sie an Ort und Stelle zu halten, und
    - eine im wesentlichen undehnbare äußere Hülle, die vorgesehen ist, um die Ausdehnung des Riemens (16a, 16b) zu begrenzen und an der Maske befestigt ist,
    durch die Tatsache gekennzeichnet, dass sie weiter umfasst:
    - eine biegsame Abdeckung (30) zum Bedecken des Kopfes, die auf im Wesentlichen leckdichte Art an der Hülle zur Begrenzung der Ausdehnung des dehnbaren Riemens des Gurtzeugs (11) befestigt ist und an der Maske (10) befestigt ist, wobei die Abdeckung (30) zumindest in einem Teil davon transparent ist, der vor den Augen des Benutzers liegt, wenn die Ausrüstung von ihm getragen wird.
  2. Ausrüstung nach Anspruch 1, dadurch gekennzeichnet, dass die Abdeckung (30) auch an der Maske (10) auf eine im Wesentlichen leckdichte Art befestigt ist.
  3. Ausrüstung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Teil der Abdeckung (30), der an der Hülle befestigt ist, eine Länge aufweist, die ausreichend ist, eine Behinderung der Ausdehnung des Riemens (16a, 16b) in einem ausreichenden Maß für den Zweck des Anlegens der Ausrüstung zu verhindern, und dass der Teil der Abdeckung (30) gestaltet ist, sich zusammenzuziehen, wenn der Riemen (16a, 16b) sich entleert.
  4. Ausrüstung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Abdeckung (30) einen oberen Teil hat, der eine Kappe bildet, wobei ein Teil von deren Rand auf eine im Wesentlichen leckdichte Art entlang der Hülle des einzelnen oder oberen dehnbaren Riemens (16a), wenn das Gurtzeug (11) zumindest zwei Riemen (16a, 16b) aufweist, befestigt ist.
  5. Ausrüstung nach einem der Ansprüche 1 bis 3, bei dem das Gurtzeug (11) zwei dehnbare Riemen aufweist, und zwar einen oberen Riemen (16a) und einen unteren Riemen (16b), dadurch gekennzeichnet, dass die Abdeckung (30) einen oberen Teil, der eine Kappe zum Bedecken des Kopfes des Benutzers bildet, und der sich oberhalb des oberen Riemens (16a) erstreckt, und einen röhrenförmigen Teil hat, der sich unterhalb des oberen Riemens (16a) erstreckt, an dem der röhrenförmige Teil auf eine im Wesentlichen leckdichte Art befestigt ist, und entweder außerhalb des unteren Riemens (16b) verläuft und an Letzterem befestigt oder nicht befestigt ist, so dass die Ausdehnung des Letzteren den röhrenförmigen Teil der Abdeckung (30) ausbreitet und das Anlegen der Ausrüstung auf dem Kopf des Benutzers ermöglicht, oder anderenfalls innerhalb des unteren Riemens (16b) verläuft, an dem der röhrenförmige Teil der Abdeckung (30) befestigt ist, um besseren Schutz zu bieten.
  6. Ausrüstung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung (30) ein einzelnes Stück transparenten Materials, wie zum Beispiel Polyurethan, umfasst, wobei ein Teil davon ein Visier bildet.
  7. Ausrüstung nach Anspruch 6, dadurch gekennzeichnet, dass der visierbildende Teil dicker und weniger biegsam als der Rest der Abdeckung (30) ist und eine konstante Dicke aufweist.
  8. Ausrüstung nach Anspruch 6, dadurch gekennzeichnet, dass der visierbildende Teil zwei separate Augenstücke (41) bildet, die durch einen dünneren Teil verbunden sind, der sich faltet, um eine Verstauung zu ermöglichen,
  9. Ausrüstung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Abdeckung (30) eine Kompositstruktur aufweist, die einen nicht-transparenten Teil aus Stoff, der im Wesentlichen undurchlässig ist und hohen Temperaturen standhält, und einen transparenten Teil hat, der ein biegsames Visier in einem Stück oder in zwei Augenstücken (41) bildet, das auf leckdichte Art an dem Stoff befestigt ist.
  10. Ausrüstung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung (30) aus einem nicht brennbaren Material besteht.
  11. Ausrüstung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie eine Aneroidkapsel beinhaltet, die einen Höhendetektor bildet und automatisch zumindest einen dehnbaren Riemen in Kommunikation mit umgebender Luft bringt, um maximale Straffheit zu gewährleisten, falls der Druck der Umgebung herabgesetzt wird.
EP01915448A 2000-03-10 2001-03-06 Kopfschutzgerät zum schnellen anziehen Revoked EP1177017B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0003110A FR2806000B1 (fr) 2000-03-10 2000-03-10 Equipement de protection de tete a mise en place rapide
FR0003110 2000-03-10
PCT/FR2001/000659 WO2001068187A1 (fr) 2000-03-10 2001-03-06 Equipement de protection de tete a mise en place rapide

Publications (2)

Publication Number Publication Date
EP1177017A1 EP1177017A1 (de) 2002-02-06
EP1177017B1 true EP1177017B1 (de) 2007-12-26

Family

ID=8847964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915448A Revoked EP1177017B1 (de) 2000-03-10 2001-03-06 Kopfschutzgerät zum schnellen anziehen

Country Status (10)

Country Link
US (1) US6588424B2 (de)
EP (1) EP1177017B1 (de)
JP (1) JP2003526486A (de)
AT (1) ATE381959T1 (de)
AU (1) AU4254301A (de)
CA (1) CA2373668C (de)
DE (1) DE60132051T2 (de)
ES (1) ES2298222T3 (de)
FR (1) FR2806000B1 (de)
WO (1) WO2001068187A1 (de)

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JP2003526486A (ja) 2003-09-09
DE60132051T2 (de) 2008-12-18
EP1177017A1 (de) 2002-02-06
AU4254301A (en) 2001-09-24
WO2001068187A1 (fr) 2001-09-20
FR2806000B1 (fr) 2002-05-31
CA2373668C (fr) 2007-05-15
ES2298222T3 (es) 2008-05-16
US6588424B2 (en) 2003-07-08
CA2373668A1 (fr) 2001-09-20
DE60132051D1 (de) 2008-02-07
ATE381959T1 (de) 2008-01-15
FR2806000A1 (fr) 2001-09-14
US20020157668A1 (en) 2002-10-31

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